Protected pneumatic heel



W. E. KAY. PROTECTED PNEUMATIC HEEL.

APPLICATION Hum FEB. 15; I919.

Patented June 1, 1920.

WILLIAM EDWARD KAY, 0F ELYRIA, OHTO.

PROTECTED PNEUMATIC HEEL.

Specification of Letters Patent.

Patented June 1, 1920.

Application filed February 15, 191 Serial No. 277,236.

To all whom it may concern Be it known that I, \ViLLIAM EDWARD Kay, acitizen of the United States, and residentof Elyria, in the county of Lorain and State of Ohio, have invented certain new and useful Improvements in Protected Pneumatic Heels, of which I hereby declare the following to be a full, clear, and exact.

description, such "as will enable others skilled in the art to which it appertains to make and use the same. i

The objects of theinvention are to provide a pneumatic heel in which air is confined under pressure, and in which the amount of resiliency is variable under variable pressure and according. to the weight of the individual wearing it. For this reason the amount of resiliency can be deter mined by the size of the pneumatic chamber and will vary naturally ,with the weight of the wearer.

One of the important features of the improvement and novelty is found in the fact that the weight will be evenly and regularly distributed over the entire wearing surface of the heel, which is not true of heels of cushion or other types.

Another important feature is found in the protection atl'orded to the resilient body of the heel by the replaceable tread member employed, and the fact that the wearing portion is always renewable without disturbing the body of the heel.

The inventioncomprises a heel composed of solidrubber or other elastic and vulcanizable substance, and containing a pneumatic chamber or cavity. Also an air tight closure is provided for this chamber. by means of which a predetermined amount of pressure can be given the air in the chamber.

The invention further consists in the combination and arrangement of parts and construction of details hereinafter described. shown in the accompanying drawings and specifically pointed out in the claims.

In the accompanying drawings, Figure I is a longitudinal vertical section of the heel.

Fig. Qis a transverse section thereof on'line :c-a; Fig. 1. Fig. 3is a section of the removable tread plate. Fig. l is a perspective of a modified f ill and Fig. 5 is a vertical section on center ine Fig. 3. I

In these views A represents a/heel body, formed preferably of solid rubber and c011- taining a cavity B which is open below on the tread side. This body is attached to anchored in the body A .claim as new and desire to the sole C of the shoe by rivets, or clench nails D, the heads of which are concealed in openings E.

Reinforcing the open edge of the cavity B, is shown a thin metal band F, which is backwardly rolled or turned edges G. p

The closure for this cavity is shown to be a heavy leather or composition tread plate H which "is provided with an engaging flange or complementary annular band I,

, by. means of the' which projects upwardly and forms an air tight joint with the metal band E when their bearingsurfaces are forced together.

This metal band I may be formed integrally with a metal plate J, which is attached to the plate H by rivets K, K, as shown in Figs. 1 and 2 or it may be molded into the raised body. H ofthe plate H, as shown in Figs. 3 and l. v 1'11 either case when the parts are forced together the bearing surfaces of the bands make the emission of air impossible.

hen the raised center H of the tread plate H is employed the air within the chamber B will be compressed, which will lessen the amount of resiliency according to the sectional area displaced, and hence by varying the amount of penetration of thebody the amount of resiliency can be 'aried to suit-difl'erent purchasers.

Having described the invention what I secure by Letters Patent is r l. The combination with a resilient heel body, said body provided with a cavity opening on the underside thereof; a metallic reinforcing band encircling the outer edge of said cavity, a. metallic inner band,,-insertihlc in sa'id reinforcing band in air tight relations therewith, and a tread plate adapted to receive the wear upon said heel, said tread plate; and .inner band attached together.

2. A pneumatic heel comprising, a resilient body. having an'opening in its lower face. a separate tread member covering the treadside of said body and said opening, an annular metal band secured to said tread member and entering said opening, and a complementaryannular metal band secured to the margin of said opening, said bands making air tight contactwith as, other.

A pneumatic heel comprising, a resilient body, having an opening in its lower face, a separate tread member covering the said opening being outwardly turned and embedded in the said resilient body.

4. A pneumatic heel comprising a. resilient heel bod having a pneumatic cavity therein, a trea plrtefcovering said cavity,

complementary annular metallic bands detachably sleeved together and making an air tight contact with each other, one of said bands secured to said tread plate and the other band secured to the vertical wall of said opening within the same, and means for securing said bands in their respective positions. a

5. In a heel, a resilient body provided with a pneumatic cavity, a tread plate thereover bers on said body and plate respectively roviding an air excluding connection thereetween and means for securing said complementary members in their respective positions. 7

6. A pneumatic heel body comprising a hollow resilient heel body having air opening in the bottom or tread side, a separate tread member covering the tread side of said body and opening, and means attached to complementary annular sleeved memair tight the inner face of saidopening, said annular bands making -air tight engagement with each other, and filling means for said annular band on said tread plate.

8. A pneumatic heelcomprising a resilient heel bodyyhaving an opening in vits tread side,

covering said tread side and opening, and means attached to said tread'member and insertible in said opening for making an air ti ht joint therewith. J I I A- pneumatic heel comprisipg a resiliient heel bbdy having a cavity in its tread 51 P,

outer edge of said cavity, a detachable tread and a detachable tread member a metal annular bearing member in the r member applied to the tread side of said I heel, and a corresponding annular bearing member attached to said attachable tread member. a

In testimony whereof I hereunto set my a hand this 4th day of Feb, 1919.

WILLIAM EDWARD KAY.

In presence of- WM. M. Mormon, S. W. SANcs'rER. 

